Wallace Pumps MULTISAN PRO, Инструкция по установке и обслуживанию

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G:\INSTRUCT\MULTISAN PRO\Multisan Pro Instructions 251119.docx Page 13
5.
Motor does not start
at all and alarm
activates
To reset the alarm
mode, switch power
off and then on.
- Discharge pipe is blocked.
- Pump is blocked.
- Dip pipe is blocked.
- Obstruction in tank.
-Thermal load activated.
- Faulty liquid level switch (always on).
- Check that pipe is clear, check that non-
return valve is operational.
- Turn off the power and check that the pump
can rotate freely in both directions by turning
the shaft at the top end of the motor with a
screwdriver. If blocked, clear the obstruction.
- Check the dip pipe is clear. This can be
done by removing the pressure switch and
using air or pipe cleaner.
- Plastics and paper towels and other large
foreign objects can block the inlet to the pump.
Check there are none of these inside the tank.
- Determine and remove the cause of the
overload trip. Reset the overload button and
test run. If the overload does not start the
motor, leave the unit to cool down for 15
minutes, check fault No 12 and retry. If the
overload re-occurs, switch the power off and
contact a Wallace Service Agent.
- Check the level switch setting and operation.
Refer fault 9 below.
6.
After evacuation the
motor engages
several times
before stopping, or
restarts at intervals
without any liquid
discharged into the
collection tank.
-Water is leaking / back flowing into the unit
from the delivery pipe, triggering the motor
to re-start.
-Non-return valve does not close properly.
-No non-return valve in the delivery line.
-Check that the non-return valve is clear. This
should be the supplied 32 mm FULL FLOW
NON-CLOG SWING CHECK VALVE installed
in a
vertical section of pipe as close as
possible (within 1 metre) of the pump.
-Remove the obstruction.
-Install 32 mm full flow non-clog non-return
swing check valve supplied.
7.
Pump runs and
makes a rattling
noise.
Solid object is in the tank or in the pump
and will not pass through the delivery.
Clear the obstruction.
8.
Unit smells.
-Inadequate water leading to clogged
up/dirty unit.
-No water seal on waste pipes to the unit.
-Activated carbon in carbon vent (if fitted) is
no longer functioning.
-Flush unit out with a bleach solution and
clean water.
-Plumb waste water traps.
-Replace activated carbon with new from
Wallace Pumps
9.
Pump does not
start or stop at the
correct levels of
liquid in the tank.
-Tank not correctly vented.
-Faulty liquid level switch
-Liquid level dip tube or pressure switch
blocked
-Unscrew tank inspection lid to allow venting.
Switch power on and operate pump. If
operation is correct, switch off power and
check tank vent is clear or fit vent according to
Section 8.2. Replace inspection lid.
-Replace the level switch.
-Remove obstruction and recheck operation.